Waterfront & Shoreline Retaining Walls in Coldstream, BC
Kalamalka Lake’s steep, silty banks and famously clear water put waterfront lots in Coldstream under a different set of rules than an ordinary backyard slope — walls here have to hold, drain, and protect the lake itself.
Request a Consultation →Waterfront & Shoreline Retaining Wall Cost Calculator
Retaining walls generally range from $8,000 to more than $100,000, depending on wall height, length, material, drainage, access and engineering requirements.
Wall length × average wall height = wall-face square footage
This calculator provides an early budget range only and is not a formal quote. Final pricing depends on site access, existing conditions, excavation, grading, drainage, material selections, engineering, permits, electrical and plumbing requirements, and the final approved design. Pricing is shown in Canadian dollars and excludes GST unless otherwise stated. A site consultation is required to provide an accurate proposal.
A marl lake doesn’t forgive a sloppy wall
Kalamalka Lake is one of the few marl lakes in North America, and that turquoise water is exactly why Coldstream waterfront property carries a premium — and exactly why the province is unforgiving about what happens on the banks above it. Loose fill, unstabilized slopes, or a wall built without proper drainage doesn’t just look bad; it washes silt straight into the lake, which is the kind of thing that draws attention from the Riparian Areas Protection Regulation and the Ministry of Environment. Add in Coldstream’s clay-heavy bench soils, freeze-thaw cycling off the lake in winter, and the wave and boat-wake action that hammers the shoreline all summer, and you get a slope that wants to slump if it isn’t engineered correctly. We build waterfront and shoreline retaining walls in Coldstream to hold that grade permanently: proper geotextile separation, compacted granular backfill, weeping tile drainage behind the wall face, and a footing sized for the actual soil conditions on your lot rather than a generic spec. It’s a different build than a walkout-basement wall three streets back from the water, and treating it that way is what keeps the wall standing and the lake clean.
Serving Coldstream Since 2018
We’ve been building retaining walls and full outdoor spaces on Coldstream’s Kalamalka Lake bench since 2018, and shoreline lots are some of the most technically demanding sites we work on in the Okanagan. Because Kalagan also handles permits in-house, we can coordinate the regulatory side of a lakefront build — setbacks, riparian assessment referrals, and district approvals — alongside the construction itself, rather than leaving you to manage two separate contractors. Browse examples of our completed retaining wall and outdoor living projects in our full portfolio.
Built on Trust, Honesty, and Referrals
We are proud that so much of our business comes from referrals. To us, that says everything. Our reputation has been built on trust, honesty, reliability, and the relationships we create with our clients long after the project is complete.
A True Okanagan Company. Locally owned. Locally built. Serving the Okanagan Valley since 2018.
Fully licensed, bonded & BBB A+ rated since 2018.
One project manager from first sketch to final walkthrough.
Guaranteed accuracy. Scope and value clear before we start.
Full-stack outdoor scope under one roof.
Trusted By Okanagan Homeowners
“Kalagan did an outstanding job on our major landscaping project that included two sets of stone steps, a large water feature, paving stone patio, several plant beds, irrigation system and lighting effects. Taylor brought a wealth of knowledge and ideas to the design process and was easy to work with. Communication was strong throughout the project and we heartily recommend Kalagan for your landscaping project.”
“Kalagan Outdoor Design completely gutted our backyard, then installed irrigation, new lawn, trees, shrubs, rock bordered planting areas and a new stone patio. We are absolutely delighted with the result. It far exceeded our expectations which were quite ambitious from the start. The entire team was a pleasure to work with — professional, courteous, creative and hard working.”
See our full Waterfront & Shoreline Retaining Walls service page for build methods and materials, or visit the Coldstream location page to see the full range of design-build work we do throughout the district.

Let’s design something extraordinary in Coldstream.
Schedule a consultation and take the first step toward your dream outdoor space.
Book a Consultation →